{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ULN2803ADWRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ULN2803ADWRG4","canonicalUrl":"https://icboms.com/texas-instruments/ULN2803ADWRG4","factsUrl":"https://icboms.com/api/mcp/products/ULN2803ADWRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ULN2803ADWRG4, 8 NPN Darlington array, 50V Vce, 500mA per channel, AEC-Q100 automotive grade, SOIC-18 surface mount.","salesMarkdown":"## Eight channels, 50 V, 500 mA — the workhorse driver Each Darlington pair includes a base resistor and an integrated suppression diode for inductive loads, so you can drive relays, solenoids, stepper motors, or lamp banks directly from a microcontroller or logic gate without extra flyback protection. ## Saturation voltage and thermal budget At 350 mA collector current with 500 µA base drive, the Vce(sat) is 1.6 V maximum. That 1.6 V drop times the load current is the per-channel power dissipation — at 350 mA it is 0.56 W per channel, so the total eight-channel dissipation can exceed 4 W if all outputs are loaded.","metaTitle":"ULN2803ADWRG4 8 NPN Darlington Array, 50V 500mA, AEC-Q100","metaDescription":"Texas Instruments ULN2803ADWRG4 8-channel NPN Darlington transistor array, 50V Vce, 500mA per channel, AEC-Q100 qualified, SOIC-18.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Texas Instruments","Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Power - Max":"-","Mounting Type":"Surface Mount","Package / Case":"18-SOIC (0.295\\\", 7.50mm Width)","Transistor Type":"8 NPN Darlington","lifecycle_stage":"eol_hot","Base Product Number":"ULN2803","Operating Temperature":"-40°C~85°C(TA)","Frequency - Transition":"-","Supplier Device Package":"18-SOIC","Vce Saturation (Max) @ Ib, Ic":"1.6V @ 500µA, 350mA","Current - Collector (Ic) (Max)":"500mA","Current - Collector Cutoff (Max)":"-","DC Current Gain (hFE) (Min) @ Ic, Vce":"-","Voltage - Collector Emitter Breakdown (Max)":"50V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/21b2b800bbdd24fddb5cb19410f89e2d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ULN2803ADWRG4/alternatives.json"},"ai":{"faq":[{"question":"Is ULN2803ADWRG4 a direct replacement for ULN2803A?","answer":"Yes, the ULN2803ADWRG4 is pin-compatible and functionally identical to the standard ULN2803A. The key difference is the AEC-Q100 automotive qualification on this variant, which adds the temperature range and reliability testing required for automotive and harsh-environment applications. If your BOM calls for the commercial-grade ULN2803A, this part drops in electrically, but you gain the automotive rating at no electrical penalty."},{"question":"What is the maximum output current per channel?","answer":"Each Darlington output is rated for 500 mA maximum continuous collector current. At 350 mA the Vce(sat) is 1.6 V typical."},{"question":"Is ULN2803 compatible with 5V logic?","answer":"Yes. The ULN2803 series includes a 2.7 kΩ base resistor on each Darlington pair, so it can be driven directly from 5 V logic outputs like TTL, 5 V CMOS, or a microcontroller GPIO. The input threshold is typically 1.5 V to 2.0 V, well within 3.3 V logic swing as well, though 3.3 V drive may not saturate the output as hard at high currents."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ULN2803ADWRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ULN2803ADWRG4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}